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Industrial Archaeology Of Dartmoor
The industrial archaeology of Dartmoor covers a number of the industries which have, over the ages, taken place on Dartmoor, and the remaining evidence surrounding them. Currently only three industries are economically significant, yet all three will inevitably leave their own traces on the moor: china clay mining, farming and tourism. A good general guide to the commercial activities on Dartmoor at the end of the 19th century is William Crossing's ''The Dartmoor Worker''. Mining In former times, lead, silver, tin and copper were mined extensively on Dartmoor. The most obvious evidence of mining to the casual visitor to Dartmoor are the remains of the old engine-house at Wheal Betsy which is alongside the A386 road between Tavistock and Okehampton. The word ''Wheal'' has a particular meaning in Devon and Cornwall being either a tin or a copper mine, however in the case of Wheal Betsy it was principally lead and silver which were mined. Once widely practised by many miners ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huntingdon Wheelpit2
Huntingdon is a market town in the Huntingdonshire district in Cambridgeshire, England. The town was given its town charter by King John in 1205. It was the county town of the historic county of Huntingdonshire. Oliver Cromwell was born there in 1599 and became one of its Members of Parliament (MP) in 1628. The former Conservative Prime Minister (1990–1997) John Major served as its MP from 1979 until his retirement in 2001. History Huntingdon was founded by the Anglo-Saxons and Danes. It is first mentioned in the Anglo-Saxon Chronicle in 921, where it appears as ''Huntandun''. It appears as ''Huntedun'' in the Domesday Book of 1086. The name means "The huntsman's hill" or possibly "Hunta's hill". Huntingdon seems to have been a staging post for Danish raids outside East Anglia until 917, when the Danes moved to Tempsford, now in Bedfordshire, before they were crushed by Edward the Elder. It prospered successively as a bridging point of the River Great Ouse, a market town, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
050715 043 Uk Dev Quarry
5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. It has attained significance throughout history in part because typical humans have five digits on each hand. In mathematics 5 is the third smallest prime number, and the second super-prime. It is the first safe prime, the first good prime, the first balanced prime, and the first of three known Wilson primes. Five is the second Fermat prime and the third Mersenne prime exponent, as well as the third Catalan number, and the third Sophie Germain prime. Notably, 5 is equal to the sum of the ''only'' consecutive primes, 2 + 3, and is the only number that is part of more than one pair of twin primes, ( 3, 5) and (5, 7). It is also a sexy prime with the fifth prime number and first prime repunit, 11. Five is the third factorial prime, an alternating factorial, and an Eisenstein prime with no imaginary part and real part of the form 3p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meldon Quarry
Meldon Quarry is a granite quarry in Devon, England. It is at the northern edge of Dartmoor, about 2 miles SW of Okehampton. It was developed from 1897 to supply track ballast and other stone products for the London and South Western Railway (LSWR). It was privatised in 1994. Track ballast A small quarry was started to supply local railway requirements in 1874, concurrent with the opening of the LSWR's railway extension from Okehampton to Lydford, on which the quarry lies. The railway is described in Exeter to Plymouth railway of the LSWR The Exeter to Plymouth railway of the London and South Western Railway (LSWR) was the westernmost part of a route competing with that of the Great Western Railway (GWR) and its 'associated companies' from London and Exeter to Plymouth in Devon, .... The quarry was considerably developed in 1897 to provide the majority of the track ballast requirements of the LSWR, which at the time amounted to about 100,000 tons per annum. The geology is su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metamorphic Aureole
Metamorphism is the transformation of existing rock (the protolith) to rock with a different mineral composition or texture. Metamorphism takes place at temperatures in excess of , and often also at elevated pressure or in the presence of chemically active fluids, but the rock remains mostly solid during the transformation. Metamorphism is distinct from weathering or diagenesis, which are changes that take place at or just beneath Earth's surface. Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic temperatures, pressures, and rate at which they take place and in the extent to which reactive fluids are involved. Metamorphism occurring at increasing pressure and temperature conditions is known as ''prograde metamorphism'', while decreasing temperature and pressure characterize ''retrograde metamorphism''. Metamorphic petrology is the study of metamorphism. Metamorphic petrologists re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gabbro
Gabbro () is a phaneritic (coarse-grained), mafic intrusive igneous rock formed from the slow cooling of magnesium-rich and iron-rich magma into a holocrystalline mass deep beneath the Earth's surface. Slow-cooling, coarse-grained gabbro is chemically equivalent to rapid-cooling, fine-grained basalt. Much of the Earth's oceanic crust is made of gabbro, formed at mid-ocean ridges. Gabbro is also found as plutons associated with continental volcanism. Due to its variant nature, the term ''gabbro'' may be applied loosely to a wide range of intrusive rocks, many of which are merely "gabbroic". By rough analogy, gabbro is to basalt as granite is to rhyolite. Etymology The term "gabbro" was used in the 1760s to name a set of rock types that were found in the ophiolites of the Apennine Mountains in Italy. It was named after Gabbro, a hamlet near Rosignano Marittimo in Tuscany. Then, in 1809, the German geologist Christian Leopold von Buch used the term more restrictively in his descri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roller (agricultural Tool)
The roller is an agriculture, agricultural tool used for flattening land or breaking up large clumps of soil, especially after ploughing or disc harrowing. Typically, rollers are pulled by tractors or, prior to mechanisation, a team of animals such as horses or ox, oxen. As well as for agricultural purposes, rollers are used on cricket pitches and residential lawn areas. Flatter land makes subsequent weed control and harvesting easier, and rolling can help to reduce moisture loss from cultivated soil. On lawns, rolling levels the land for mower, mowing and compacts the soil surface. Rollers may be weighted in different ways. For many uses a heavy roller is used. These may consist of one or more cylinders made of thick steel, a thinner steel cylinder filled with concrete, or a cylinder filled with water. A water-filled roller has the advantage that the water may be drained out for lighter use or for transport. In frost-prone areas a water filled roller must be drained for winte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Scotland Yard
Scotland Yard (officially New Scotland Yard) is the headquarters of the Metropolitan Police, the territorial police force responsible for policing Greater London's 32 boroughs, but not the City of London, the square mile that forms London's historic and primary financial centre. Its name derives from the location of the original Metropolitan Police headquarters at 4 Whitehall Place, which also had an entrance on a street called Great Scotland Yard. The Scotland Yard entrance became the public entrance, and over time "Scotland Yard" has come to be used not only as the name of the headquarters building, but also as a metonym for both the Metropolitan Police Service itself and police officers, especially detectives, who serve in it. ''The New York Times'' wrote in 1964 that, just as Wall Street gave its name to New York's financial district, Scotland Yard became the name for police activity in London. The force moved from Great Scotland Yard in 1890, to a newly completed buildin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nelson's Column
Nelson's Column is a monument in Trafalgar Square in the City of Westminster, Central London, built to commemorate Vice-Admiral Horatio Nelson's decisive victory at the Battle of Trafalgar over the combined French and Spanish navies, during which he lost his life. The monument was constructed between 1840 and 1843 to a design by William Railton at a cost of . It is a column of the Corinthian order, p.100 built from Dartmoor granite. The statue of Nelson was carved from Craigleith sandstone by sculptor Edward Hodges Baily. The four bronze lions around its base, designed by Sir Edwin Landseer, were added in 1867. The pedestal is decorated with four bronze relief panels, each square, cast from captured French guns. They depict the Battle of Cape St. Vincent, the Battle of the Nile, the Battle of Copenhagen and the death of Nelson at Trafalgar. The sculptors were Musgrave Watson, William F. Woodington, John Ternouth and John Edward Carew, respectively. The ornate capital upo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haytor Granite Tramway
The Haytor Granite Tramway (also called Heytor) was a tramway built to convey granite from Haytor Down, Dartmoor, Devon to the Stover Canal. It was very unusual in that the track was formed of granite sections, shaped to guide the wheels of wagonway, horse-drawn wagons. It was built in 1820; the granite was in demand in the developing cities of England as masonry to construct public buildings and bridges. In 1850 the quarries employed about 100 men but by 1858 they had closed due to the availability of cheaper Cornwall, Cornish granite. The Haytor rocks and quarries are protected from development and disturbance as a Site of Special Scientific Interest. Operation and purpose The granite from the quarries near Haytor Rock was much in demand for construction work in the cities of England, but in an era when railways and reliable roads had not yet been developed, the transport of this heavy and bulky commodity was a significant problem. Coastal shipping was a practicable transport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
London Bridge
Several bridges named London Bridge have spanned the River Thames between the City of London and Southwark, in central London. The current crossing, which opened to traffic in 1973, is a box girder bridge built from concrete and steel. It replaced a 19th-century stone-arched bridge, which in turn superseded a 600-year-old stone-built medieval structure. This was preceded by a succession of timber bridges, the first of which was built by the Roman founders of London. The current bridge stands at the western end of the Pool of London and is positioned upstream from previous alignments. The approaches to the medieval bridge were marked by the church of St Magnus-the-Martyr on the northern bank and by Southwark Cathedral on the southern shore. Until Putney Bridge opened in 1729, London Bridge was the only road crossing of the Thames downstream of Kingston upon Thames. London Bridge has been depicted in its several forms, in art, literature, and songs, including the nursery rh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Haytor
Haytor, also known as Haytor Rocks, Hay Tor, or occasionally Hey Tor, is a granite tor on the eastern edge of Dartmoor in the English county of Devon. Location The tor is at grid reference , near the village of Haytor Vale in the parish of Ilsington. There is an electoral ward with the same name. The population at the 2011 census is 2,862. History ''Idetordoune'' (1566), ''Ittor Doune'' (1687), ''Idetor'' (1737), ''Eator Down'' (1762) and ''Itterdown'' (1789) are a few recorded examples of earlier names by which Haytor was known. The name ''Haytor'' is of comparatively recent origin, and is probably a corruption of its old name and that of the Haytor Hundred, which covered the coastal area between the River Teign and River Dart, itself now considered to have been named after a lost village located somewhere between Totnes and Newton Abbot. In the 19th century steps were made to allow pedestrians up to the top of the tor and a metal handrail fixed to allow tourists easier ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_by_Claes_Van_Visscher.jpg "Click for more on -> London Bridge")
